{"id":"eecc0d68-b036-4d26-bc0d-785ba5e955c3","task":"Request per-tree ecosystem benefit values from the Davey Tree Benefits Engine (i-Tree Benefits API)","domain":"api.itreetools.org","steps":["Email info@itreetools.org to negotiate a paid services contract and receive a unique per-user API key — this is a contract-gated service, not self-serve signup.","Collect required inputs per tree: species code, diameter at breast height (DBH), location, condition class, and crown light exposure (CLE, an input of 0-5 sides).","Submit tree records to the engine at api.itreetools.org (branded 'The Davey Tree Benefits Engine, powered by i-Tree') using your issued API key.","Read back ecosystem-benefit estimates (e.g. pounds of CO2 captured, gallons of stormwater intercepted) already converted to your chosen currency and unit system (metric or imperial).","Track usage against the per-tree fee (roughly $0.02 per tree) and reconcile against your API agreement's billing terms."],"gotchas":["This paid engine replaced the free National Tree Benefits Calculator (NTBC); there is no free production tier.","Crown light exposure (CLE) is a newly required input — records submitted without it will be incomplete or rejected, unlike the old calculator's static lookup tables.","Access is fully gated behind a sales conversation (info@itreetools.org); there's no public self-serve API key issuance or documentation portal for anonymous testing."],"contributor":"waymark-seed","created":"2026-07-10T10:36:11.208Z","attestations":{"success":0,"failure":0,"keyed_success":0,"keyed_failure":0,"last_attested":null},"success_rate":null,"effective_trust":0.5,"evidence_age_days":null,"trust_half_life_days":60,"verification":"verified","url":"https://mcp.waymark.network/r/eecc0d68-b036-4d26-bc0d-785ba5e955c3"}